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SERVICE MANUAL

LED TV

Chassis

MSD318

This service information is designed for experienced repair technicians only and is not designed for use by the general public. 
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to 
service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

WARNING

LE24C2380a

Model No.

Summary of Contents for LE24C2380a

Page 1: ...or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional...

Page 2: ...Panel 4 Disassemble and Assemble 4 1 Remove the Pedestal 6 8 8 8 8 10 12 12 4 2 Remove the Back Cover 12 4 3 Remove the Adhesive Tape 12 4 4 Remove the Main Board 13 4 5 Remove the Speaker 13 4 6 Remo...

Page 3: ...e shooting 41 9 1 Simple Check 41 9 2 Main Board Failure Check 9 3 Panel Failure 42 51 8 1 How to enter into the factory model 8 2 How to update software 38 39 8 Measurements and Adjustments 33 8 3 Ho...

Page 4: ...instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock 7R SUHYHQW GDPDJH ZKLFK PLJKW UHVXOW LQ HOHFWULF VKRFN RU UH GR QRW H SRVH WKLV 79 VHW to rain or exce...

Page 5: ...UHFHLYHU RQO WKH WHVW WXUHV VSHFL HG LQ WKLV VHUYLFH PDQXDO CAUTION R QRW FRQQHFW WKH WHVW WXUH JURXQG VWUDS WR DQ KHDW VLQN LQ WKLV UHFeiver 3 Do not spray chemicals on or near this receiver or any...

Page 6: ...static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconducto...

Page 7: ...bed in the table below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution A caution is used when there is danger...

Page 8: ...play 16 7M No of Preset Channels OSD Language English Color System PAL SECAM Audio System DK BG I M L L Audio Output Power Built in W 3W 2 Audio Output Power outer W No Total Power Input W 40W Voltage...

Page 9: ...08 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location No Description A Board Integration Mainboard 3 2 Main Board A Board TB300714400M...

Page 10: ...nslate into signal that panel can display RQQHFWRU GH QLWLRQ Main board connector Keypad andremote connector J12 3LQ QXPEHU 6LJQDO QDPH HVFULSWLRQ B5 03 5 B 03 5 1 5 5 027 21752 1 1 9 32 5 25 5 027 1...

Page 11: ...3 3 LED Panel 10 Service Manual Model No MTC236LED B02F BOE HM236WU3 100...

Page 12: ...XO3 Negative Transmission data of Pixel 3 ODD 11 RXO3 Positive Transmission data of Pixel 3 ODD 12 RXE0 Negative Transmission data of Pixel 0 EVEN 13 RXE0 Positive Transmission data of Pixel 0 EVEN 14...

Page 13: ...UHDU FRYHU faces upward 5HPRYH WKH WKUHH VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK 7KHQ UHPRYH WKH SHGHVWDO 4 2Remove the Back Cover 5HPRYH WKH WKHVH VFUHZ LQGLFDWHG RQ JXUH DERYH E 7KHQ UHPRYH WKH ED...

Page 14: ...4 4 Remove the Main board 5HPRYH WKH 0DLQ ERDUG Service Manual Model No 13 J12 J11 LVFRQQHFWHG WKH FRXSOHU CN800 J9 4 5 Remove the speaker Take out the speaker...

Page 15: ...4 6 Remove the remote control take out the remote controlboard Service Manual Model No 14...

Page 16: ...cable not included to the ANT IN jack on the back of your TV DVD combo then connect the other end of the cable into the antenna or cable TV wall outlet To improve picture quality from an antenna in a...

Page 17: ...le Input impendance 75 unbalanced STEPS PC Be sure both the TV and computer are powered off 1 Connect a VGA and audio cable 2 Connect the power cord 3 Turn on the TV switch to PC mode 4 Turn on the PC...

Page 18: ...8 9 10 720 400 640 480 640 480 800 600 800 600 1024 768 1024 768 1024 768 1280 1024 1280 1024 70 60 75 60 75 60 70 75 60 75 31 47 31 47 37 50 37 88 46 88 48 36 56 48 60 02 63 98 80 00 RESOLUTION V Fr...

Page 19: ...y also need to refer to the owner s manual of the device that you are trying to connect HDMI VGA HEADPHONE RF PC AUDIO COAXIAL HDMI1 HDMI2 USB The television s inputs can be connected to the following...

Page 20: ...menu When the source device DVD player or Set Top Box supports DVI How To Connect 1 Connect the source device to HDMI port of this TV with a HDMI to DVI cable not supplied with this product 2 A separa...

Page 21: ...Cable sample HDMI Cable not supplied with the product HDMI to DVI Cable not supplied with the product Analog Audio Cable Stereo to RCA type not supplied with the product Service Manual Model No 20...

Page 22: ...Use the attached power cord only I WKH SRODUL HG FRUG GRHV QRW W LQWR D QRQ SRODUL HG RXWOHW GR QRW DWWHPSW WR OH RU FXW WKH EODGH W LV WKH XVHUCV UHVSRQVLELOLW WR KDYH DQ electrician replace the obs...

Page 23: ...erminals are from left to right AUDIO INPUT VIDEO YPbPr INPUT Note AV and Component YPbPr share the R and L audio inputs SIDE Connections All the terminals are from left to right HDMI1 HDMI2 USB VGA H...

Page 24: ...eject the disc 17 Press to display the DTV Electronic Program Guide In DVD mode press to go to the previous chapter 18 Press to display the favorite channels list In DVD mode press to go to the next c...

Page 25: ...Q32 HOLD 1 VCC 2 NC1 3 NC2 4 NC3 5 NC4 6 SO16 CS 7 DO 8 WP Vpp 9 VSS 10 NC5 11 NC6 12 NC7 13 NC8 14 DI 15 CLK 16 SOP8 CS 17 SOP8 DO 18 SOP8 WP Vpp 19 VSS 20 SOP8 DI 21 SOP8 CLK 22 SOP8 HOLD 23 SOP8 VC...

Page 26: ...0 1uF C73 10nF C73 10nF R279 10K R279 10K R532 47R R532 47R C143 0 1uF C143 0 1uF FB5 FB56R 1A FB5 FB56R 1A R437 10K R437 10K C139 0 1uF C139 0 1uF EC16 470uF 16V EC16 470uF 16V R156 820R R156 820R R4...

Page 27: ...pF C124 470pF EC12 100uF 16V EC12 100uF 16V 1 2 R299 0R R299 0R R242 10K R242 10K R236 10K R236 10K EC11 470uF 16V EC11 470uF 16V 1 2 R284 1K R284 1K Q22 3904 Q22 3904 R233 100R R233 100R C126 470pF C...

Page 28: ...5 R323 NC 0R 0805 R305 4 7K R305 4 7K R320 4 7K R320 4 7K R812 100K R812 100K R158 5 1R R158 5 1R R326 10K R326 10K R193 10K R193 10K 1 2 C157 0 1uF C157 0 1uF R313 0R 0805 R313 0R 0805 C118 100uF 16V...

Page 29: ...UA_DQSB1 4 MIUA_DQS1 4 MIUA_DQM0 4 MIUA_DQM1 4 MIUA_DQ 15 0 4 MIUA_A 13 0 4 MIUA_BA2 4 C433 1UF C433 1UF 7 5 3 1 8 6 4 2 RP18 75RX4 7 5 3 1 8 6 4 2 RP18 75RX4 R13 75R R13 75R 7 5 3 1 8 6 4 2 RP2 22RX4...

Page 30: ...MI1 SCL 2 HDMI1 SDA 2 HDMI1 RX2P 2 HDMI1 RX2N 2 HDMI1 RX1P 2 HDMI1 RX1N 2 HDMI1 RX0P 2 HDMI1 RX0N 2 HDMI1 CLKP 2 HDMI1 CLKN 2 HDMI0 HPDIN 2 R311 100R R311 100R R343 1K R343 1K R330 100R R330 100R R335...

Page 31: ...R C492 1nF C492 1nF R88 75R R88 75R R31 120R R31 120R C355 47nF C355 47nF R210 22K R210 22K R136 12K R136 12K C485 47nF C485 47nF J37 Single RCA J37 Single RCA G 1 S 2 S 3 R544 33R R544 33R R551 68R R...

Page 32: ...CH7 9 CH8 10 PWM 11 NC 12 FBX 13 ISET 14 FB 15 SDB 16 SDBX 17 AGND 18 VCC 19 EN 20 R838 100R R838 100R 10uH 3 8A L807 10uH 3 8A L807 R867 22R 1206 R867 22R 1206 R349 0R 0805 R349 0R 0805 U807 U807 GND...

Page 33: ...on wire Blacklight Service Manual Model No 7 2 Wiring Connection Diagram NO Name 1 2 3 4 5 Connection Wire For Keyboard and Remote Connection Wire For Speaker LVDS Wire Connection Wire Power Wire 5 2...

Page 34: ...Sound Mode Select the user sound mode Standard News Music Theater Sports Custom 2 Bass Adjust to increase or decrease lower pitched sounds 3 Treble Adjust to increase or decrease higher pitched sound...

Page 35: ...guage D Sexually suggestive dialog Suggested age TV Y All children TV Y7 Direct to order children TV G General audience TV PG Parental Guidance suggested TV 14 Parents strongly cautioned TV MA Mature...

Page 36: ...but may be integrated into the plot in a humorous or unrealistic manner 8ans General but inadvisable for young children May be viewed by a wide public audience but could contain scenes disturbing to...

Page 37: ...sted Menu Language English Select Adjust Menu Exit 3 5 VGA Settings Only available in VGA PC input mode 1 H Pos Adjust the horizontal position of the screen 2 V Pos Adjust the vertical position of the...

Page 38: ...een shown below will be displayed USB C Photo Music Everything I do mp3 C laoge 17 001 018 Total size 3 7 GB Unused size 3 7 GB Sealed With A Kiss mp3 mp3 mp3 mp3 mp3 mp3 mp3 mp3 Everything I do mp3 T...

Page 39: ...ce of each signal source 4 SSC to adjust the spectrum for passing the EMC test 5 special set 1 2hour off for Aging test 2 WDT watch dog 3 white pattern set pure color output for the panel used at the...

Page 40: ...ld remove the USB memory and reset TV after update Note When Upgrade on the process please don t Power Off Haier MSD318QT F W upgrade with USB SOP Step 1 Ready for F W Upgrade 1 1 Prepare a USB memory...

Page 41: ...annel 6 Start Menu Display 7 Input Source Change 8 Save to USB 9 Loaking 10 Volume Default Hotel mode switch Panel key lock Hotel mode can adjust the maximum volume Hotel mode locking TV signal source...

Page 42: ...Service Manual Model No 9 Trouble shooting 9 1 Simple check 41...

Page 43: ...he Q31 Yes Check if there is 26V at C931 Yes No Check if U3 Pin20 5V Pin11 5V Pin19 5V U5 Pin2 0 72V Pin3 5V Pin4 12V Pin6 5 7V is normal Change LVDS wire No Replace U3 or U5 Check if Q103 FB12 D10 D9...

Page 44: ...board Still having problems Check if there is sound input signal No Check the input source Yes No Verify if U16 has the right power in Pin 7 Check if there is output at Pin1 Pin7 of U15 Change U16 Yes...

Page 45: ...voltage pressure of J7 Pin2 is high voltage pressure More than 3V Yes Change U11 No sound No picture Change Mainboard No Yes Check if there is voltage pressure in the pad of the L806 12V L807 5V CHANG...

Page 46: ...power cord to the socket Check if there is voltage pressure in J3 12V J7 5Vstb Replace Remote Control Board Yes Replace D806 or D811 Still having problems Change Mainboard Check if L1 1 28V L10 1 8V F...

Page 47: ...s correct Poor sound Change sound system No Update the software and make the reboot or change the Mainboard Still having problems For ease of use recommend that customer format the picture and sound s...

Page 48: ...system Refer to relative instructions in the Manual for color adjust No No Yes Yes Check out of picture and sound system of this channel Change the channel to the right sound system PAL M N NTSC M No...

Page 49: ...2 in J7 Check J3 voltage of 12 and J8 of 5 No No Yes Yes Replace D811 Replace U11 How to know whether the Power board is broken Still having problems Check if Main board LVDS wire Panel are in good co...

Page 50: ...7 has the right software and work well 5 Verify if the Y1 Crystal has the right frequency Panel not work 1 check if the voltage input and output of boost IC is working normally 2 Verify if the Mainboa...

Page 51: ...heck if the power supply if working normally check if the power supply of 5Vstandby is working normally 3 check if the POWER ON OFF voltage is high pressure 4 check if the power supply have 12V 5V out...

Page 52: ...r cracking Dim or L D TCP Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and Panel Panel failure TCP failure V Dim Vertal gray...

Page 53: ...r Bubble Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F M i n s i d e Polarizer Eyewinker inside Polarizer Eyewinker inside P...

Page 54: ...isplay Maybe caused by surge current and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crossta...

Page 55: ...s between wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire...

Page 56: ...iption Phenomena Failure cause Mechanlcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount...

Page 57: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China...

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